Dear President Obama:
Yesterday you sent me an email and asked me, as a supporter of yours in the past, to commit to vote this fall.
I would be happy to commit to vote, but only if you, as president, will (i) commit to the principles of the Democratic party and (ii) commit to fighting for those principles and against the corporatism to which you have been far too accommodating.
There is no "inc" in "We the People" or "of the people, by the people for the people."
Corporations do many fine things. As an attorney and constitutional scholar, however, you of all people should understand that the goals of maximizing profits for a small private group of shareholders is a completely different set of values than those needed to run our government.
Corporate goals are, quite properly, private goals; they are ill-fitted to the public concerns of government.
"Of the people, by he people, for the people;" not "of the shareholders, by the employees, for the shareholders."
I beseech you: join with President Lincoln's resolve that " that government of the people, by the people, for the people, shall not perish from the earth."
By the way, I am a liberal, but I am not of "the professional left." Whoever is advising you to show such disrespect to erstwhile supporters (who wish to continue to support you but see little reason to do so) is serving you badly.